<!-- 登录页面 -->
<template>
    <div class="container">
        <div class="loginBox">
            <a-form-model
                :model="formdata"
                :rules="rules"
                ref="loginFormRef"
                class="loginForm"
            >
                <a-form-model-item prop="username" label="用户名">
                    <a-input
                        v-model="formdata.username"
                        placeholder="请输入用户名"
                        ref="username"
                    >
                        <a-icon
                            slot="prefix"
                            type="user"
                            style="color: rgba(0, 0, 0, 0.25)"
                        />
                    </a-input>
                </a-form-model-item>
                <a-form-model-item prop="password" label="密码">
                    <a-input
                        v-model="formdata.password"
                        placeholder="请输入密码"
                        type="password"
                        v-on:keyup.enter="login()"
                    >
                        <a-icon
                            slot="prefix"
                            type="lock"
                            style="color: rgba(0, 0, 0, 0.25)"
                        />
                    </a-input>
                </a-form-model-item>
                <a-form-model-item class="loginBtn">
                    <a-button
                        type="primary"
                        style="margin: 0 20px"
                        @click="login()"
                        >登录</a-button
                    >
                    <a-button
                        type="info"
                        style="margin: 0 20px"
                        @click="reset()"
                        >取消</a-button
                    >
                </a-form-model-item>
            </a-form-model>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            formdata: {
                username: "",
                password: "",
            },
            rules: {
                username: [
                    {
                        required: true,
                        message: "请输入用户名",
                        trigger: "blur",
                    },
                    {
                        min: 4,
                        max: 12,
                        message: "用户名在4到12字符之间",
                        trigger: "blur",
                    },
                ],
                password: [
                    { required: true, message: "请输入密码", trigger: "blur" },
                    {
                        min: 6,
                        max: 20,
                        message: "密码在6到20字符之间",
                        trigger: "blur",
                    },
                ],
            },
        };
    },
    //生命周期 - 创建完成（访问当前this实例）
    created() {},
    //生命周期 - 挂载完成（访问DOM元素）
    mounted() {
        this.$refs.username.focus();
    },
    //方法集
    methods: {
        // 取消（重置表单）
        reset() {
            this.$refs.loginFormRef.resetFields();
        },
        // 登录
        login() {
            this.$refs.loginFormRef.validate(async (val) => {
                if (!val) {
                    this.$message.error("输入非法数据，请重新输入！");
                    return;
                }
                const { data: res } = await this.$axios.post(
                    "admin/login",
                    this.formdata
                );
                // console.log(res);
                if (res.status != 200) {
                    this.$message.error(res.message);
                    return;
                }
                window.sessionStorage.setItem("token", res.token);
                this.$router.push("/index");
            });
        },
    },
};
</script>

<style scoped>
.container {
    height: 100%;
    background-color: #747d8c;
    /* display: flex;
       justify-content: center;
       align-items: center; */
}

.loginBox {
    width: 500px;
    height: 350px;
    background-color: azure;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 5px;
}

.loginForm {
    width: 100%;
    position: absolute;
    bottom: 10%;
    padding: 0 20px;
    box-sizing: border-box;
}

.loginBtn {
    display: flex;
    justify-content: center;
}
</style>